I purchased my thimble from DeeDee McElroy at the Lancaster Quilt Show. I picked up one to try and said I needed a larger one. Dee said I actually needed a smaller one. The thimble is to just cover the fingernail. I wanted it to cover my writer's bump. When I wear my thimble, I can flip my hand and it does not come off. It just fits well.
The top of the thimble is open to accommodate longer nails. The dimples are deep and can be used when hand stitching or quilting. It is a little pricey and is also sterling silver. My thimble of choice.
DeeDee has a website. Goggle her full name to find.
Suzanne